Vortex-Induced Vibration Analysis (VIVA) Based on Hydrodynamic Databases
Author(s)
Triantafyllou, George S.
Zheng, Haining
Price, Rachel Elizabeth
Modarres-Sadeghi, Yahya
Triantafyllou, Michael S
Date Issued
June 2011
Journal
Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
Publisher
ASME International
Citation
Zheng, Haining, Rachel Price, Yahya Modarres-Sadeghi, George S. Triantafyllou, and Michael S. Triantafyllou. “Vortex-Induced Vibration Analysis (VIVA) Based on Hydrodynamic Databases.” Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, 19-24 June, 2011, Rotterdam, the Netherlands, ASME, 2011. © 2011 by ASME
Version
Final published version
Abstract
We outline the procedures used by program VIVA, developed over the last sixteen years to estimate the cross-flow vibration of marine risers in arbitrary currents. The program theory is based on a combination of first principles, extensive hydrodynamic databases, as well as modifications introduced through comparison against experimental and field data. The program was built from the start to handle standing as well as traveling waves, or arbitrary combinations of traveling and standing waves, through the use of complex modes. Considerable effort was expended to develop a hydrodynamic methodology that is suitable for short and long risers and cables, and which provides results in agreement with recent observed mechanisms. In particular, we outline changes to take into account: • the influence of in-line as well as cross-flow oscillations; • the influence of the Reynolds number; • the effect of high force harmonics; • modeling of lock-in in a sheared flow; • modeling of straked sections. The methodology is illustrated through several examples where predictions are compared with field and experimental data. Copyright © 2011 by ASME.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1115/OMAE2011-50192
